The ostrich (鸵鸟) is a bird of the deserts of Africa. It is the largest of all birds. It is often 10 feet High. Sometimes the ostrich is called the “camel bird”. Like the camel it lives in the desert, and can live a long time without water.
The ostrich’s legs are very long and strong, but its wings are small, and it cannot fly. The ostrich can run very quickly—about 30km an hour. The nest of the bird is a great hole in the sand. The ostrich lays 10 or 12 large eggs. She watches her nest and leaves it only during the hottest part of the day.
People often hunt the ostrich, but it is not easy to catch it. The hunter must know that the ostrich runs only zig-zag (Z字形路线).
31. The ostrich can run quickly so ________.
A.its legs become longer and stronger |
B.its wings become smaller and smaller |
C.it is easily caught |
D.people call it the “camel bird” |
32. According to the passage above, we can see that a couple of (一对) ostriches can have at most ________ children.
33. The ostrich watches her nest and seldom leaves it because ________.
A.her eggs are in it |
B.people often hunt her |
C.she wants to have a good rest after she has laid eggs |
D.she is afraid of the hottest hours of the day |
34. ________ , so people call it the “camel bird”.
A.The ostrich has a larger body than any other bird in the desert |
B.The ostrich’s character is like the camel’s |
C.The ostrich is a bird of the deserts of Africa |
D.The ostrich can run about 30km an hour |
35. If there is no water, the ostrich ________.
A.will die in no time |
B.can still stay alive for some time |
C.can still live well |
D.may leave her nest without laying any eggs |